Cradle-rocker



W. PHILLOU.

CRADLE ROCKER.

APPLICAIZION FILED MAY 25. 1920.

Patented Mar. 1, 1921.

2 SHEETS-SHEET I.

g mvmm'fi Wilham Plullnu MQW - UNITE-I); STATES PATENT OFFICE.

. WILLIAM PHILLOU, OF RACINE, WISCONSIN.

CRADLE-ROCKER.

ToaZZ iohomc't'mdyconcem fT Be it known that I, TIVILILIAM. PHILLOU, a citizen of the United Statesdtrnd resident of Racine, inthe: county 'of Racine andState of isconsimlhave invented certain new and useful Improvements in Cradle-Rockers, and. I do hereby declare that the following a full, cleaig and exact description thereof. l '3 My invention relates to new and useful improvements in attachments for rocking cradles and other similar receptacles by mechanical means.

It is the principal object of the present invention to provide a mechanism of this character which, when connected with a cradle or the like can be driven by the force of an electric motor.

An additional object is to provide a simply constructed attachment which can be easily and quickly connected with acradle and supported in connection therewith by usual parts thereof.

Still another object of the invention is to provide an attachment of this character, having an adjustment whereby different degrees of oscillation of the cradle or the like can be secured.

With these general objects in view, the invention consists of the novel features of construction, combination and arrangement of parts which will be hereinafter more particularly described and claimed.

In the accompanying drawings,

Figure 1 represents a side elevational view of a cradle showing one embodiment of my mechanical rocking means associated therewith, parts of the former being broken away to more clearly show portions of the latter.

Fig. 2 is a transverse sectional View taken on the plane of the line 22 of Fig. 1.

Referring more particularly to the drawings, the reference character 1 denotes a cradle or other similar receptacle designed to be rocked on its end supporting pivots 2. As shown in Figure 1, these pivots 2 engage in bearings carried by end frames 3, each being formed of a pair of crossed legs 4. The corresponding legs 4 of each end frame are connected adjacent their lower ends with brace rods 5. Any other supporting structure for the cradle 1, can be used within the scope of the present invention, and likewise the rocking attachment to be described Specification of Letters Patent.

Application filed May 25, 1920. Serial No. 384,235.

Patented Mai-.1, 1921.

can be used for oscillating other forms of receptacles than the cradle illustrated.

As shown in Fig. 2 the brace bars 5 are a separate part, and between them is sup ported a hanger 6, the same comprising a supporting plate 7 and oppositely projecting bracket arms 8 disposed at each end thereof. The bracket arms are in the form of substantially right angular straps, one arm of each of which is secured to the plate 7, whereas the hooks on the other arms overhe the brace rods 5. Such a structure read- 11y permits the hanger to be applied to the cradle support or removed therefrom on short notice.

Adjacent one end portion of the hanger plate 6 is secured a base plate 9 having an upwardly extending standard 10 and an ear 11 spaced therefrom. A rocker arm 12 is pivoted to the ear 11 and has its upper free end slotted as at 13 to adjustably receive the pivot bolt 14; of a link 15. The link 15 in turn is pivoted to the end of'a depending cradle arm 16 attached to the bottom of the cradle 1. Obviously by rocking the arm 12, the cradle 1 will be oscillated, and the degree of oscillation can be readily varied by moving the position of the pivot bolt 14 within the slot 13.

The above referred to standard 10 has a bearing 17 formed on its upper end in which a worm shaft 18 is j ournaled, one end of this shaft carrying a worm 19 and the other end apulley 20. The standard 10 also has a second bearing 21 carried by an car 22, the axis of said second bearing being at right angles to the bearing 17 and located therebeneath. A shaft 23 disposed in the hearing 21 has a worm gear 24 fixed thereto and in position to have its teeth meshed with the tooth of the worm.

A suitably shaped cam 25, for instance one of a heart shape, is secured to one face of the worm gear and is designed to have its periphery engaged by follower roller 26, the same being pivotably carried by an car 27 projecting from one side of the rocker arm 12 intermediate the ends there- 'of. A contractile spring 28 urges the f0llower roller into continuous contact with the cam, said spring having one end connected with the rocker arm 12 and the other end with a spring eye 29. As shown in Fig. 2 the spring eye is adjustable in an ear 30 projecting from the standard 10.

Inasmuch as compactness of parts is one of the requisites of an attachment of this nature, I preferably rotate the worm shaft 18 by means of anelectric motor 31, the shaft 32 of which is belted to the pulley 20 as at 33. The casing of the motor 31 has attaching legs 34 by which the same is secured to the hanger plate 7.

From the foregoing description taken in connection with the accompanying drawings, it will be seen that the rotary motion of the electric motor 31 is readily translated into an oscillatory motion in the cradle 1. By the use of such an attachment as above described. it is simply necessary to start the motor after the rocker arm 12 has been linked to the cradle 1, in order to procure continuous rocking of the latter.

I claim:

1. In a mechanism of theclass described, a member adapted to be rocked, an oscilment with the cam, and means for rotating the cam.

2. In a device of the character described, a frame, a rockable member supported by the frame, a supporting base supported from the frame below said rockable' member, a rotatable cam supported on said base, a rock arm pivoted on said base and having a follower thereon yieldingly held in engagement with said cam, and means for rotating said cam.

In testimony that I claim the foregoing I have hereunto set my hand at Racine in the county of Racine and State of Wisconsin.

WILLIAM PHILLOU. 

